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Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

#!/bin/bash
printf 'Starting script\n' >> log
printf 'Creating test directory\n' >> log
mkdir test || exit
printf 'Changing into test directory\n' >> log
cd test || exit
printf 'Writing current date\n' >> log
date > date || exit

Any command-line input or output is written as follows:

$ printf 'Hello, world\n' > myfile $ ls -l myfile -rw-r--r-- 1 bashuser bashuser 1 2018-07-29 20:53:23 myfile

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."

Warnings or important notes appear like this.
Tips and tricks appear like this.
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